Built-up record



Feb. 11, 1930. E. NIETHAMER 1,746,602

BUILT-UP RECORD Filed May 4, 1928 1 IN NTOR g mfle amen ATTORNEY Patented Feb. 11, 1930 UNITED STATES EDWARD NIETHAMER, F BAY CITY, MICHIGAN BUILT-U]? RECORD Application filed May 4, 1928.

This invention relates to talking machine records and the like, and particularly to a record having the sound grooves formed on the outer periphery thereof.

One of the prime objects of the invention is to design a record particularly for use on an annunoiating machine such as shown and described in Patent Nol 1,666,503, granted to me under date of April'17, 1928, where the records fit side by side, and are rotated in any approved manner.

Another object of the invention is to provide a built up record, and means for accurately spacing them one from the other, said means being so shaped, as to fit and interlock with depressions formed in the record structure.

A further object is to provide a record having a steel center, and a composition rim in which the sound grooves are formed and from which the composition rim can be easily removed, and a new rim substituted therefor.

The above and other objects will appear as the specification progresses, reference bein had to the accompanying drawing in which I have shown the preferred embodiment of my invention, and in which like numerals indicate like parts throughout the several views thereof.

In the drawings,

Fig. 1 is a side view showing myimproved record.

Fig. 2 is a vertical sectional edge view.

Fig. 3 is a side view of one of the spacing washers.

Fig. 4 is an edge view thereof.

Fig. 5 is a fragmentary side view showing the serrated edge of the record center.

Fig. 6 is a fragmentary sectional edge view showing a number of records in assembled relation.

Referring now to the drawing, the numeral 5 indicates the center of the record, which can be in the form of asheet metal disc having a centrally disposed opening 6 therein, and which is adapted to and receive a shaft, (not shown), diametrically opposite depressions 7 being formed in said 'dlSC in position as shown, and a spacing washer Serial No. 275,039.

8 is adapted to engage and seat therein in a manner to be presently described.

The outer periphery of the sheet metal disc or center is serrated as shown at 9, so that the material 10 in which the sound grooves are formed, may tightly cling thereto when cured. The body of the material 10 is of course of greater width than the thickness of the disc, and it will therefore be obvious that suit able spacing means must be provided, and I find the washer 8 to be very convenient and satisfactory, this is preferably formed of sheet metal, and is also provided with raised portions 11 which fit in the depression 7 in the disc. This particular construction also aids in the assembly of the records which is an important feature inasmuch as a considerable number of records will be assembled on the one shaft, and when one is cracked, ordefective, or obsolete, it is necessary to remove and replace, which means the removal of all records ahead of the defective one, and their subsequent replacement, and

this construction permits this to be easily and accurately made without fear of mistake.

When the records are in assembled position, it will be obvious that were the reproducer to travel continuously over the assembled set up that the needle would undoubtedly stick in the groove formed by placing the records side by side, this however is not the case, as the reproducer mechanism (not shown) is connected to a shifting mechanism which raises the reproducer, (not shown) at predetermined intervals.

From the foregoing description it will be obvious that I have perfected a very simple, economical, and substantial built up record for use with annunoiating machines.

What I claim is 1. A talking machine record comprising a sheet metal disc having a centrally disposed opening, depressions adjacent thereto, and a rim on the outer periphery of the disc. having sound grooves formed therein. I

2. A talking machine record comprising a sheet metal disc having a centrally disposed opening, depressions in said disc, a washer having raised portions adapted to nest in said depressions, and a rim on said disc, having sound grooves formed therein.

3. A built up talking machine record comprising a plurality of sheet metal discs provided with a composition rim having sound grooi'es formed therein, and interlocking means for spacing the centers of said records from each other.

In testimony whereof I hereunto aflix my signature.

EDWARD NIETHAMER. 

